Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1001
as already been explained (see Fig. 396), and its throttling action begins gradually. Should the car be stopped too suddenly on the up-trip, the water in the lower end of cylinder E will be forced I through valve d at the bottom of pipe G, and the mo- imentum of the nioving parts will be expended… … Fig. 400 Hydraulic Elevators 973 draulic elevator^ with running rope or standing rope con-trol. Other methods of control besides those already de-scribed are in use^ mainly in private dwellings and otherplaces where an .operator is not employed. These consistof magnetic controllers for operating…
